<template>
  <div class="app-container">
    <el-form label-width="120px">
      <el-form-item label="信息描述">
        <el-tag type="info">excel模版说明</el-tag>
        <el-tag>
          <i class="el-icon-download"/>
          <a :href="'/static/01.xlsx'">点击下载模版</a>
        </el-tag>
      </el-form-item>

      <el-form-item label="选择Excel">
        <el-upload
          ref="upload"
          :auto-upload="false"
          :on-success="fileUploadSuccess"
          :on-error="fileUploadError"
          :disabled="importBtnDisabled"
          :limit="1"
          :action="BASE_API+'/eduservice/subject/addSubject'"
          name="file"
          accept="application/vnd.ms-excel">
          <el-button slot="trigger" size="small" type="primary">选取文件</el-button>
          <el-button
            :loading="loading"
            style="margin-left: 10px;"
            size="small"
            type="success"
            @click="submitUpload">上传到服务器</el-button>
        </el-upload>
      </el-form-item>
    </el-form>
  </div>
</template>

<script>
	export default {
		data() {
			return {
			  BASE_API: process.env.BASE_API, // 接口API地址
			  importBtnDisabled: false, // 按钮是否禁用,
			  loading: false
			}
		},
		created() {
			
		},
		methods: {
			//点击按钮上传文件到接口里面
			submitUpload() {
				this.importBtnDisabled = true
				this.loading = true
				this.$refs.upload.submit()
			},
			
			//上传成功
			fileUploadSuccess(response) {
				//提示信息
				this.loading = false
				this.$message({
					type: 'success',
					message: '添加课程分类成功'
				})
				//跳转到课程分类列表	路由跳转
				this.$router.push({
					path: '/subject/list'
				});
			},
			
			//上传失败
			fileUploadError() {
				this.loading = false
				this.$message({
					type: 'error',
					message: '添加课程分类失败'
				})
			}
		}
	}
</script>
<style>
</style>
